Brick-machine



UNITED STATES PATENT OFFICE.

VILLIAM WOOD, OF HARTFORD, CONNECTICUT.

BRICK-MACHINE.

Specification of Letters Patent No. 16,561, dated February 3, 1857.

To all whom it may concernf Be it known that I, VILLIAM VooD, of thecity of Hartford, county of Hartford, and State of Connecticut, haveinvented a new and useful Improvement in the Method of Construct-ingMachines for Making Bricks; and I do hereby declare that the` followingis a full and exact description thereof, reference being had to theaccom panying drawing and to the letters of reference marked thereon.

The nature of my invention consists in the peculiar construction of thepress box, and grate.

To enable others skilled in the art to make `and use my invention, Iwill proceed to describe its construction and operation.

The drawing-Figure l is a front view of the brick machine. Fig. 2 asection through middle front to rear. Fig. 3 a plan showing arms &c.Fig. 4 a method of fastening the knives. Fig. 5, is an end section ofthe press box with the front J and slides turned up wit-h part of thefront of the grate attached. Fig. 6 is a view of the press box with thefront J turned up to show grate bars. Fig. 7 is a plan of the grate.

I construct the body and frame of t-he machine with wood and iron putstrongly together of the required dimensions and form as described inthe drawings Figs. l, 2, e, 4.

The vertical main shaft A is of iron with proper bearings, and mortisesto receive the cutting and pressing knives B, these knives I fasten intothe shaft in pairs with stop shoulders and keys as shown in Fig. L theupper eight knives I make to work flat and horizontally with a windingshape to cause them to press the clay downward while revolving andcutting, the lower six knives are the forcing knives and are made of acurved form flattened at the outer end to force the clay into the pressand grate box c preparatory to being pressed through the grate, L, intothe mold D.

On the upper end of the main shaft A I construct and fix arms E 2- 3 or4L in number as the case may require, these arms are curved at the outerend and on which wheels or rollers may be fixed if necessary to strikeagainst the vertical lever F, while in the act of revolving, pressingthe same downward. This lever F passes through the shaft G, and isadjustable to a proper height,

by means of the screw to the saine to raise or lower it, to give more orless pressure, the vertical lever F being pressed down by the arm E,till it passes over the top of the same, causes the shaft. G to revolvea certain distance, and the segment pinion H, operates on the rack I,attached to the press plate K, and causes it to press downward in thepress box c forcing the clay through the grating L into the mold D toform the bricks.

When the arm passes over the vertical lever it is relieved and risesagain by the action o-f a weight on the side lever M, which operates therock shaft Gr bringing up the press plate K again to be operated on bythe following arm in the same way. I thus obtain the same number ofpressures as there are arms at every revolution of the shaft A makingsix bricks at every pressure, the clay being constantly supplied intothe box C, by the forcing knives B. The grating L is constructed to ftinto the press box c, in such a manner as to be removed, to be replacedby another when different kind of bricks are required to be made. In thefront of the press box at the bottom part, I make six slides or movabledoors, S, to correspond with the openings of the grate. These slides areformed at the bottom edge inside to correspond with the grate bars andare beveled on the underside, when these slides are down the grating ofcourse will be perfect. These slides being attached t-o swing front, J,of the press box, c, allow of the whole front of the press box beingturned up together with the entire front of the grate, L, as shown inFigs. 5 and 6, or each slide S, can be raised vertically as shown inFig. 1.

By the above construction and arrangement of the front of the press boxand grate, any and all obstructions either in the press box or grate, bethe same large or small can be quickly removed, and the ma# chineadjusted for use again. By this arrangement obstructions can be hookedfrom the grate in a much more convenientmanner than if the grate slidesand box were of ordinary construction.

To take out a stone when it gets into the mold with the clay, it is onlynecessary to raise, the slide of the brick in which there is one.Sometimes however the bottom part being beveled as before stated, thest-one will force itself under and lift up the slide and come out withthe mold without assistance. This preparation for taking out stones isvery important, as they are injurious to complicated machinery and causegreat delay and damage.

The mold platform N, I make with a series of rollers in the bottom forthe molds tc slide on. I raise and lower the same by means of the screw,O, or it-s equivalent to accommodate the thickness of the brick to bemade.

The empty brick molds are passed in the side of the machine at theopening, P, to the platform. rlwo are required to be in at one time.rlhe forward one is under the grating and press to be filled and theother one at the back. The lever P, passing under the platform to theback of the two molds presses both forward when operated on by 20 thefoot', the empty mold forcing the full one out, to be taken away and theempty one takes its place to be filled. The lever is so balanced as tofall back immediately when the full mold is taken away and is relievedfrom the pressure of the foot, leaving the space empty at the back foranother empty mold to be passed in.

Vhat I claim as my invention and desire to secure by Letters Patent is-Constructing the front of the press box 0, with the front of the grate Lattached thereto, so that by means of slides S, and swing front J, aportion or all of the front of both press boX and grate can be raised inthe manner and for the purpose set forth.

VILLIAM WOOD.

Vitnesses VM. VINE, VM. VINE, Jr.

